Answer:
Copper and Iron
Explanation:
Metals, like copper and iron, are good conductors of heat; that is because metals are bounded by a 'cloud' of free electrons and these electrons can carry easily kinetic energy through the metal
On the other hand, foam and wood are isolators, that is, they are bad conductors of heat.
Try technology? i’m not totally sure but it makes sense
For which of the following activities might you want to hire a chemist?
Answer: D. testing a rock sample for gold content
Which of the following procedures involves a physical change in one of the substances?
Answer: C. separating a salt solution by evaporating the water
Answer:
<h2>acetyl chloride > acetic anhydride > methyl acetate > acetamide</h2>
Explanation:
Such kind of substitution reaction in which nucleophiles and the acyl compound interact is known as nucleophilic acyl substitution reaction. In this reaction, the interaction between carbonyl compounds and the nucleophile takes place by addition reaction. The reactivity of the acyl compound is based on the condition of the leaving group that is related to the acidity of the compounds. So the decreasing order of reactivity of the acyl compounds is, acetyl chloride > acetic anhydride > methyl acetate > acetamide.
